I believe the sensor you are refering to is to shut the cruise control when you hit the brakes. The sensor itself needs replaced not the entire master cylender. Keep in mind, three was a recall on the wiring to the sensor. I believe it included up to 2001. Check with your local Ford dealer to check on that. THe original wiring was causing fires.
Let me know if you have other questions.
Sunday, January 3rd, 2010 AT 12:00 AM